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22 Cards in this Set

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a scientist who discovered the law of universal gravitation.
Sir Isaac Newton
the scottish scientist who discovered electromagnetic waves.
James Maxwell Clerk
the first astronomer to make extensive use of a telescope
Galieo
the father of modern Rocketry
Robert H. Goddard
leader in space exploration
Wernher von Braun
The first person to travel into space
Yuri Garin
the first American in space
Alan Sheppard
the first American to orbit the earth
John Glenn
the first women to fly in space
Valentina Tereshkova
The first man to set foot on the moon
Neil Armstrong
discovered what is now Uranus
The Hershels
the planet closest to the sun
Mercury
The hottest planet
Venus
The only planet people can live on
Earth
called the red planet
Mars
the largest planet
Jupiter
the planet known for its rings
Saturn
the eighth planet from the sun
Neptune
noted for being turned side ways
Uranus
the smallest planet
Pluto
Satellites that are used to relay telephone messages, televisionbroadcasts, and other signals around the world
communication
A orbit that allows a satellite to be always located abovethe same location of the earth.
geostationary orbit